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Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

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MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Dynapath Systems CMOS Dual Bus Memory Board 501-03883-00

$359.00 USD

Sale Sold out

ConditionSurplus - Untested MPN501-03883 Stock #0226-00656

Photos reflect current condition. Items differing from description may be eligible for return or refund — see our condition guide.

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Estimated package weight: 5.0 lbs

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A CMOS Dual Bus Memory Board from Dynapath Systems, part number 501-03883-00, with secondary board reference 502-03093 visible on the PCB silkscreen. Dated to the 42nd week of 1984, this is a Bendix-era ISA-format board used in Dynapath Delta series CNC control systems. The board carries serial number D09417 and board assembly number 503, as visible on the PCB edge label. The memory array is populated with Fujitsu MB8416A-15L CMOS SRAM ICs across multiple rows, with the board silkscreen indicating a 5V VCCA supply rail. Edge connectors are gold-plated, consistent with the ISA bus interface standard used in Dynapath Delta control rack assemblies. Write protect functionality is indicated by an on-board switch labeled "ON WRITE PROTECT OFF." Additional sub-board stickers reference part numbers 502-70144-00, 502-70146-00, and 502-70145-00. This board provides program and parameter storage within a Dynapath Delta CNC control rack and is directly relevant to owners of legacy Dynapath or Bendix-branded machining centers that utilize the original 503-series ISA card rack architecture.

Stock # 0226-656

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Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.